WO2015150986A1 - Désinfecteur thermique ultrasonore - Google Patents

Désinfecteur thermique ultrasonore Download PDF

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Publication number
WO2015150986A1
WO2015150986A1 PCT/IB2015/052226 IB2015052226W WO2015150986A1 WO 2015150986 A1 WO2015150986 A1 WO 2015150986A1 IB 2015052226 W IB2015052226 W IB 2015052226W WO 2015150986 A1 WO2015150986 A1 WO 2015150986A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
basin
thermal
disinfector
ultrasonic
Prior art date
Application number
PCT/IB2015/052226
Other languages
English (en)
Inventor
Angelo Bellosi
Daniele Tosi
Chiara ALBERTAZZI
Original Assignee
Mocom S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mocom S.R.L. filed Critical Mocom S.R.L.
Priority to US15/111,197 priority Critical patent/US20160324994A1/en
Priority to CN201580003014.1A priority patent/CN105813658A/zh
Priority to EP15720437.1A priority patent/EP3134133B1/fr
Publication of WO2015150986A1 publication Critical patent/WO2015150986A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/70—Cleaning devices specially adapted for surgical instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/002—Cleaning devices specially adapted for dental instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/025—Ultrasonics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/102—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/17—Combination with washing or cleaning means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20—Targets to be treated
    • A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps

Definitions

  • the present invention relates to a thermal disinfector provided with ultrasonic cleansing for the disinfection of dental instruments, or more generally, of medical/surgical instruments.
  • the gold standard in the treatment of medical/dental instruments is the sterilization through water steam autoclave; the efficacy of the sterilizing cycle is however linked to the state of cleanliness of the instruments which are inserted into the autoclave. Therefore, pre-treating the instruments before wrapping and inserting them into the autoclave is a common practice.
  • Ultrasonic baths effectively clean instruments only, while thermal disinfectors ensure also a high degree of disinfection. Both these apparatuses make it possible to decrease the risk to human operators linked to handling cutting/sharp instruments, and to better standardize the kind of treatment instruments undergo.
  • the disadvantage linked to thermal disinfector use is the duration of the disinfecting cycle, which, like in domestic dishwashers, is rather long-lasting, around two hours. Moreover, without the ultrasound cleansing, the removal of residual cement from instruments is more difficult, and therefore the operator has to remove it manually.
  • the present invention aims to provide an apparatus and a method to cleanse and disinfect instruments, improving the duration and the efficiency of the process, and protecting human operators.
  • the apparatus of the present invention also consists of a basin closed by a cover wherein consecutive steps of a cycle are automatically performed:
  • the advantage of the present apparatus as compared to ultrasonic baths and thermal disinfectors is the better efficiency of the process.
  • the apparatus described in Soltec's patents and in patent application CN 201 423 361 Y there is a lower use of water and a more rapid cycle. This is obtained thanks to the special heating system, which does not require the use of heating coils within the basin, and to the fact that the thermal disinfection step is not performed with immersed instruments, but is performed through water jets which recirculate the water present in the basin.
  • FIG. 1 Perspective view of the thermal disinfector
  • FIG. 1 Schematic diagram of the thermal disinfector
  • FIG. 3 Schematic diagram of a further embodiment of the thermal disinfector.
  • FIG. 1 shows a perspective view of the thermal disinfector of the present invention.
  • the thermal disinfector 1 comprises a cover 2, a basin 3, a display 5. Within the basin 3 there is a basket 4 where the instruments to be washed and disinfected are placed. On the surface beneath the cover 2 there is an inlet 6 to the reservoir of salt for the regeneration of the resins of a water softener, and an inlet 7 to the detergent reservoir.
  • the thermal disinfector 1 preferably comprises a container 2a, which preferably houses said basin 3, in a raised position with respect to the bottom of said container 2a, and the other elements.
  • the container 2a is preferably entirely closed by the cover 2.
  • a sprinkler 8 for inletting water jets into the basin, and also a nozzle 9 for inletting water coming from the water mains.
  • a port 11 for introducing air for the drying step, which flows out through the exit port 28.
  • a HEPA filter to filter incoming air.
  • FIG. 2 shows a schematic diagram of the components of the thermal disinfector 1.
  • the basin 3 is provided with a plurality of sonotrodes 24 for generating ultrasound.
  • the basin 3 is provided with external heating bands 18, consisting of electric resistors, for heating the walls of the basin 3.
  • the basin 3 extends preferably mainly in a horizontal plane, in particular the dimensions in the horizontal plane are more than three times greater than the dimensions in the vertical direction.
  • the sonotrodes 24 are also preferably arranged in correspondence with the largest surface, that is to say in correspondence with the lower surface that extends in the horizontal plane.
  • the basin 3 can be filled to two different water levels:
  • Water can enter the basin 3 through two different inlets:
  • the nozzle 9 introducing water coming from the water mains (indicated with the upward bold arrow) into the basin 3 through a valve 22; said water is softened thanks to the passage through a softener group 21 , and enters the basin at the room temperature of the mains water;
  • the sprinkler(s) 8 introducing recirculating water only into the basin 3, passing through a recirculating pump 16 and a water heater 15, which can be on or off. When the water heater 15 is off, it does not heat the water.
  • Incoming water in any quantity, is always initially introduced through the nozzle 9.
  • the basin 3 is provided with two outlets for water: an outlet 26 which is the outlet for recirculating water, and an outlet 25, which connects the basin to the drain and eventually to the sewer; said final outlet is indicated with the downward bold arrow.
  • On the drainage line from the outlet 25 a connection branches off, at whose end is positioned a level sensor 20 which detects the water level in the basin 3. Also on the drainage line there is a pump 19 for extracting water from the basin 3.
  • the thermal disinfector 1 also, preferably, comprises anti-flooding means 31 (Fig. 4), preferably comprising a containment tray 32 arranged on the bottom of the container 2a and suitable to contain the water that flows out through broken pipes or from the basin 3 through an overflow hole 3a.
  • the anti-flooding means 31 preferably comprise a float valve 33 arranged in said containment tray 32 and more preferably in a lowered portion 32a of the tray 32.
  • the float valve 33 is preferably mechanically linked to a water shut-off valve, preferably a solenoid valve. Said solenoid valve is appropriately suitable to move and disconnect the water circuit, and the flow of water into the thermal disinfector 1 and the container 2a when the float valve 33 rises due to flooding.
  • a temperature sensor 17 Downstream of the recirculating water outlet 26 there is at least a temperature sensor 17 for detecting the temperature of the recirculating water.
  • the thermal disinfector 1 there is a reservoir 13 for a detergent, which through a dosing pump 14 is directly introduced into the basin 3 through a specific inlet 10.
  • a fan 23 supplied with air passing through a HEPA filter 27 intended to purify the air entering the basin; said air is used to dry the instruments, and is filtered so that it does not contaminate them in the final step of the cycle successive to the disinfection step.
  • the incoming air also preferably passes through heating means, preferably comprising a labyrinth with heating fins, suitable to heat the air in order to dry the instruments quickly.
  • the air inlet duct preferably also comprises a temperature sensor and a one-way valve that allows the air to enter the basin 3 but not to flow back out of it.
  • the position of the heater 15 outside and at a distance from the basin 3, and so not directly in contact with the basin 3, avoids the need for heating coils inside the basin, as is the case in the apparatus described in the aforesaid patents.
  • This is advantageous in that it leaves the basin totally free, so that cleansing is easier and the safety of the thermal disinfector 1 is enhanced.
  • the recirculating water is heated as it passes through the water heater 15, and falls in the form of jets through sprinklers 8 on the instruments contained in the basket 4. This allows the use of smaller quantities of water, which are therefore heated more rapidly, significantly reducing the duration of the washing and thermal disinfection cycle.
  • the sprinklers 8 in one embodiment are present in the form of rotors, like those of a traditional domestic dishwasher; in the preferred embodiment, they are in the form of rotating nozzles. This is different from the fixed nozzles described in the aforesaid patent documents, in that their presence adds a mechanical action that significantly improves the washing and the removal of particles from instruments. Moreover, the sprinklers 8 sprinkle hot water in the basin 3 generating a whirl, thus improving the distribution of heat and detergent. Rotating nozzles generate a better water distribution as compared to rotors, using less water.
  • a human operator gathers the dirty instruments, suitably positions them in the basket 4, positions the filled basket 4 in the basin 3 and then closes the cover 2. Then she/he starts the automatic cycle using the display 5. The successive steps of the thermal disinfection cycle are automatically controlled by an electronic control unit (not shown).
  • the method applied by the ultrasonic thermal disinfector of the present invention comprises the following steps:
  • Heating of the liquid (water and detergent) present in the basin 3 occurs through the combined action of the heating bands 18 and of the outside water heater 15; at the same time ultrasonic washing is started; ultrasounds are generated by sonotrodes 24; thanks to recirculation, the water is progressively brought to about 45°C; this step of ultrasonic washing requires at least 10 minutes;
  • water heating is preferably performed using the heating bands 8 and using water recirculation through the outside water heater 15 only for the minimum needed to mix the water and eliminate thermal stratification.
  • the air is taken from outside the thermal disinfector 1 , passes through a special HEPA filter 30 for compressed air, and is introduced into the basin 3 through the rotors or rotating nozzles 8. This makes it possible to improve air distribution, and more generally the drying step. Obviously the presence of a valve 29 is necessary, to allow the filtered air pipe to be connected to the last portion of the water pipe upstream of the sprinklers 8.
  • the total time of a cycle performed as described above is around 40 minutes. This is a very short time, if compared to the duration of a cycle of a traditional thermal disinfector, which requires a variable time of between 120-75 minutes.
  • the above- described cycle makes it possible to obtain instruments free of residual solids, thanks to the mechanical action performed by the rotating nozzles and ultrasonic cleansing; moreover the instruments have a contamination level much lower than that obtainable with a simple ultrasonic bath without thermal disinfection.
  • thermal disinfector
  • tray - 32a lowered portion

Abstract

Désinfecteur thermique (1) comprenant un couvercle (2), une cuve (3), au moins un orifice d'entrée (8, 9) pour de l'eau, un orifice de sortie (25) pour évacuer l'eau vers l'égout, un orifice de sortie (26) pour faire recirculer l'eau de sorte qu'elle peut être réintroduite dans la cuve (3), au moins un générateur d'ultrasons (24) et au moins une unité de commande électronique. Le désinfecteur est caractérisé en ce que le dispositif de chauffage d'eau (15) est disposé à l'extérieur de la cuve (3).
PCT/IB2015/052226 2014-04-02 2015-03-26 Désinfecteur thermique ultrasonore WO2015150986A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/111,197 US20160324994A1 (en) 2014-04-02 2015-03-26 Ultrasonic thermal disinfector
CN201580003014.1A CN105813658A (zh) 2014-04-02 2015-03-26 超声波热消毒器
EP15720437.1A EP3134133B1 (fr) 2014-04-02 2015-03-26 Désinfecteur thermique ultrasonore

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20140185 2014-04-02
ITBO2014A000185 2014-04-02

Publications (1)

Publication Number Publication Date
WO2015150986A1 true WO2015150986A1 (fr) 2015-10-08

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PCT/IB2015/052226 WO2015150986A1 (fr) 2014-04-02 2015-03-26 Désinfecteur thermique ultrasonore

Country Status (4)

Country Link
US (1) US20160324994A1 (fr)
EP (1) EP3134133B1 (fr)
CN (1) CN105813658A (fr)
WO (1) WO2015150986A1 (fr)

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WO2017103804A1 (fr) 2015-12-14 2017-06-22 Cefla Societa' Cooperativa Procédé de stérilisation dans un cabinet médical, de préférence dans un cabinet dentaire
FR3050388A1 (fr) * 2016-04-26 2017-10-27 Philippe Maurand Dispositif de nettoyage pour protheses dentaires avec sechage integre, cassette de stockage et procede de nettoyage associes
EP3241623A3 (fr) * 2016-04-26 2018-03-07 Philippe Maurand Dispositif de nettoyage pour prothèses dentaires avec séchage intégré, cassette de stockage et procédé de nettoyage associés
CN108042822A (zh) * 2017-12-07 2018-05-18 朱小建 一种医疗眼科用手术器械消毒设备
CN109013442A (zh) * 2018-06-13 2018-12-18 老肯医疗科技股份有限公司 一种外科手术器械清洗装置
RU2692787C1 (ru) * 2019-03-18 2019-06-27 Акционерное общество "Елатомский приборный завод" Ультразвуковая машина для предстерилизационной очистки медицинских изделий
CN110076137A (zh) * 2019-05-23 2019-08-02 北京安达维尔航空设备有限公司 一种便携式变积超声波清洗机
RU2712669C1 (ru) * 2018-11-27 2020-01-30 Общество с ограниченной ответственностью "СИТЕК СЕРВИС" Моечно-дезинфицирующее ультразвуковое устройство с гидродинамическим воздействием
CN111407425A (zh) * 2020-04-03 2020-07-14 宿州市强域医药信息咨询有限公司 一种手术器械分类放置高压清理箱
CN111481697A (zh) * 2020-03-19 2020-08-04 重庆医药高等专科学校 一种医疗实验用消毒设备

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USD781509S1 (en) * 2013-09-18 2017-03-14 Shenzhen Codyson Electrical Co., Ltd. Digital ultrasonic cleaner (CD-4862)
DE102017104239A1 (de) * 2017-03-01 2018-09-06 Ika-Werke Gmbh & Co. Kg Reinigungsvorrichtung
CN107225127A (zh) * 2017-06-21 2017-10-03 广西高农机械有限公司 一种用于食品包装袋的清洁装置
CN108339796A (zh) * 2017-12-28 2018-07-31 南京康翱峰自动化科技有限公司 一种高效超声波清洗设备
CN108714225B (zh) * 2018-05-29 2020-09-04 重庆市机电设计研究院 医疗超声波清洗仪器
CN109771019A (zh) * 2019-01-31 2019-05-21 王强 一种消化内科胃部异物辅助取出装置
FR3119102A1 (fr) * 2021-01-23 2022-07-29 Manuel Correia Dispositif de filtration d’air autonettoyant par ultrasons
CN113058058A (zh) * 2021-03-29 2021-07-02 王晗 护理通用消毒方法
CN114224543A (zh) * 2022-01-20 2022-03-25 张艳艳 口腔消毒护理辅助装置
CN114652878B (zh) * 2022-03-31 2023-05-16 昆明盘谷医学检验实验室有限公司 一种生物检测仪器消毒装置及消毒方法

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US7803315B2 (en) * 2001-10-05 2010-09-28 American Sterilizer Company Decontamination of surfaces contaminated with prion-infected material with gaseous oxidizing agents
US20110132404A1 (en) * 2009-03-16 2011-06-09 Lutz Todd M Method and apparatus for cleaning of laparoscopic surgical instruments
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017103804A1 (fr) 2015-12-14 2017-06-22 Cefla Societa' Cooperativa Procédé de stérilisation dans un cabinet médical, de préférence dans un cabinet dentaire
FR3050388A1 (fr) * 2016-04-26 2017-10-27 Philippe Maurand Dispositif de nettoyage pour protheses dentaires avec sechage integre, cassette de stockage et procede de nettoyage associes
EP3241623A3 (fr) * 2016-04-26 2018-03-07 Philippe Maurand Dispositif de nettoyage pour prothèses dentaires avec séchage intégré, cassette de stockage et procédé de nettoyage associés
CN108042822A (zh) * 2017-12-07 2018-05-18 朱小建 一种医疗眼科用手术器械消毒设备
CN109013442B (zh) * 2018-06-13 2020-05-22 老肯医疗科技股份有限公司 一种外科手术器械清洗装置
CN109013442A (zh) * 2018-06-13 2018-12-18 老肯医疗科技股份有限公司 一种外科手术器械清洗装置
RU2712669C1 (ru) * 2018-11-27 2020-01-30 Общество с ограниченной ответственностью "СИТЕК СЕРВИС" Моечно-дезинфицирующее ультразвуковое устройство с гидродинамическим воздействием
RU2692787C1 (ru) * 2019-03-18 2019-06-27 Акционерное общество "Елатомский приборный завод" Ультразвуковая машина для предстерилизационной очистки медицинских изделий
CN110076137A (zh) * 2019-05-23 2019-08-02 北京安达维尔航空设备有限公司 一种便携式变积超声波清洗机
CN111481697A (zh) * 2020-03-19 2020-08-04 重庆医药高等专科学校 一种医疗实验用消毒设备
CN111481697B (zh) * 2020-03-19 2021-11-02 重庆医药高等专科学校 一种医疗实验用消毒设备
CN111407425A (zh) * 2020-04-03 2020-07-14 宿州市强域医药信息咨询有限公司 一种手术器械分类放置高压清理箱
CN111407425B (zh) * 2020-04-03 2021-07-30 朱勤 一种手术器械分类放置高压清理箱

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Publication number Publication date
CN105813658A (zh) 2016-07-27
US20160324994A1 (en) 2016-11-10
EP3134133A1 (fr) 2017-03-01
EP3134133B1 (fr) 2018-08-15

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